Grammar of Assent

^2. And in showing that assent is distinct from an act of inference, I have gone a good way towards showing in what it differs from it. If assent and inference are each of them the acceptance of a proposition, but the special characteristic of inference is that it is conditional, it is natural to suppose that assent is unconditional. Again, if assent is the acceptance of truth, and truth is the proper object of the intellect, and no one can hold conditionally what by the same act he holds to be true, here too is a reason for saying that assent is an adhesion without reserve or doubt to the proposition to which it is given. And again, it is to be presumed that the word has not two meanings: what it has at one time, it has at another. Inference is always inference; even if demonstrative, it is still conditional; it establishes an incontrovertible conclusion on the condition of incontrovertible premisses. To the conclusion thus drawn, assent gives its absolute recognition. In the case of all demonstrations, assent, when given, is unconditionally given. In one class of subjects, then, assent certainly is always unconditional; but if the word stands for an undoubting and unhesitating act of the mind once, why does it not denote the same always? what evidence is there that it ever means anything else than that which the whole world will unite in witnessing that it means in certain cases? why are we not to interpret what is controverted by what is known? This is what is suggested on the first view of the question; but to continue:—

In demonstrative matters assent excludes the presence of doubt: now are instances producible, on the other hand, of its ever co-existing with doubt in cases of the concrete? As the above instances have shown, on very many questions we do not give an assent at all. What commonly happens is this, that, after hearing and entering into what may be said for a proposition, we pronounce neither for nor against it. We may accept the conclusion as a conclusion, dependent on premisses, abstract, and tending to the concrete; but we do not follow up our inference of a proposition by giving an assent to it. That there are concrete propositions to which we give unconditional assents, I shall presently show; but I am now asking for instances of conditional, for instances in which we assent a little and not much. Usually, we do not assent at all. Every day, as it comes, brings with it opportunities for us to enlarge our circle of assents. We read the newspapers; we look through debates in Parliament, pleadings in the law courts, leading articles, letters of correspondents, reviews of books, criticisms in the fine arts, and we either form no opinion at all upon the subjects discussed, as lying out of our line, or at most we have only an opinion about them. At the utmost we say that we are inclined to believe this proposition or that, that we are not sure it is not true, that much may be said for it, that we have been much struck by it; but we never say that we give it a degree of assent. We might as well talk of degrees of truth as of degrees of assent.

Yet Locke heads one of his chapters with the title "Degrees of Assent;" and a writer, of this century, who claims our respect from the tone and drift of his work, thus expresses himself after Locke's manner: "Moral evidence," he says, "may produce a variety of degrees of assents, from suspicion to moral certainty. For here, the degree of assent depends upon the degree in which the evidence on one side preponderates, or exceeds that on the other. And as this preponderancy may vary almost infinitely, so likewise may the degrees of assent. For a few of these degrees, though but for a few, names have been invented. Thus, when the evidence on one side preponderates a very little, there is ground for suspicion, or conjecture. Presumption, persuasion, belief, conclusion, conviction, moral certainty,—doubt, wavering, distrust, disbelief,—are words which imply an increase or decrease of this preponderancy. Some of these words also admit of epithets which denote a further increase or diminution of the assent." [Note 2]

Can there be a better illustration than this passage supplies of what I have been insisting on above, viz. that, in teaching various degrees of assent, we tend to destroy assent, as an act of the mind, altogether? This author makes the degrees of assent "infinite," as the degrees of probability are infinite. His assents are really only inferences, and assent is a name without a meaning, the needless repetition of an inference. But in truth "suspicion, conjecture, presumption, persuasion, belief, conclusion, conviction, moral certainty," are not "assents" at all; they are simply more or less strong inferences of a proposition; and "doubt, wavering distrust, disbelief," are recognitions, more or less strong, of the probability of its contradictory.

There is only one sense in which we are allowed to call such acts or states of mind assents. They are opinions; and, as being such, they are, as I have already observed, when speaking of Opinion, assents to the plausibility, probability, doubtfulness, or untrustworthiness, of a proposition; that is, not variations of assent to an inference, but assents to a variation in inferences. When I assent to a doubtfulness, or to a probability, my assent, as such, is as complete as if I assented to a truth; it is not a certain degree of assent. And, in like manner, I may be certain of an uncertainty; that does not destroy the specific notion convened in the word "certain."

I do not know then when it is that we ever deliberately profess assent to a proposition without meaning to convey to others the impression that we accept it unreservedly, and that because it is true. Certainly, we familiarly use such phrases as a half-assent, as we also speak of half-truths; but a half-assent is not a kind of assent any more than a half-truth is a kind of truth. As the object is indivisible, so is the act. A half-truth is a proposition which in one aspect is a truth, and in another is not; to give a half-assent is to feel drawn towards assent, or to assent one moment and not the next, or to be in the way to assent to it. It means that the proposition in question deserves a hearing, that it is probable, or attractive, that it opens important views, that it is a key to perplexing difficulties, or the like.

3. Treating the subject then, not according to à priori fitness, but according to the facts of human nature, as they are found in the concrete action of life, I find numberless cases in which we do not assent at all, none in which assent is evidently conditional;—and many, as I shall now proceed to show, in which it is unconditional, and these in subject-matters which admit of nothing higher than probable reasoning. If human nature is to be its own witness, there is no medium between assenting and not assenting. Locke's theory of the duty of assenting more or less according to degrees of evidence, is invalidated by the testimony of high and low, young and old, ancient and modern, as continually given in their ordinary sayings and doings. Indeed, as I have shown, he does not strictly maintain it himself; yet, though he feels the claims of nature and fact to be too strong for him in certain cases, he gives no reason why he should violate his theory in these, and yet not in many more.

Now let us review some of those assents, which men give on evidence short of intuition and demonstration, yet which are as unconditional as if they had that highest evidence.

First of all, starting from intuition, of course we all believe, without any doubt, that we exist; that we have an individuality and identity all our own; that we think, feel, and act, in the home of our own minds; that we have a present sense of good and evil, of a right and a wrong, of a true and a false, of a beautiful and a hideous, however we analyze our ideas of them. We have an absolute vision before us of what happened yesterday or last year, so as to be able without any chance of mistake to give evidence upon it in a court of justice, let the consequences be ever so serious. We are sure that of many things we are ignorant, that of many things we are in doubt, and that of many things we are not in doubt.

2. Gambier on Moral Evidence, p. 6.